#include <iostream>

using namespace std;
typedef long long LL;

const int N = 1010;
int n,m,q;
LL f[N][N];


int main()
{
    cin >> n >> m >> q;
    for(int i = 1;i <= n;i++)
    {
        for(int j = 1;j <= m;j++)
        {
            LL x;
            cin >> x;
            f[i][j] = f[i - 1][j] + f[i][j - 1] - f[i - 1][j - 1] + x;
        }
    }
    while(q--)
    {
        int x1,y1,x2,y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << f[x2][y2] - f[x1 - 1][y2] - f[x2][y1 - 1] + f[x1 - 1][y1 - 1] << endl;
    }
    return 0;
}